Answer:
Taking LHS
=1 by cos theta- cos theta
= (1- cos²0)/ cos0
= sin²0/ cos0 ( because 1-cos²0 is also equals to sin²0)
=RHS hence proved
Answer:
positive; sence it's starting from the bottom and going up its positive
Answer:
13
Step-by-step explanation:
Answer:
See explanation
Step-by-step explanation:
Let our two digit number be 26
Next, we rewrite it as a difference of two numbers
26=32-6
We want to square 26 using the identity:
In this case,
Substituting into the identity